I have this Compaq SR5703WM and it runs horribly! It'll browse the internet fine, but when I go watch a video, it won't play without lagging out very badly. The APU is an AMD Sempron 2.20GHz (LE-1250 Sparta) and it has 2GB of RAM installed. My old computer, a Dell Dimension 8300, had a 2.66GHz...